Right, it’s a matter of physics and actual danger mitigation. Light is absorbed by black colored clothing, making an effective camouflage in the dark. If you camouflage yourself in the dark and walk in the road, you increase your chances that drivers won’t see you before it’s too late.

No sane parent would teach their child that it’s the car drivers’ responsibility to not hit them, placing all burden for their safety on drivers. Instead, we teach them ways to be careful to reduce the danger. Safety precautions are not based on “how it should be” ideals. They are based on practical ways to reduce dangers.